Spindle driver for a high-speed decorating device of cans

摘要

A continuous motion can decorator includes a plurality of mandrel subassemblies mounted on a rotating carrier with equal angular spacings between adjacent subassemblies. The assemblies reciprocate radially with respect to the carrier axis as a center. Each subassembly includes a radially extending support arm that mounts a radially extending mono rail which extends through guide bearing units on the carrier. The mandrel of each subassembly is mounted on an axis that is parallel to the rotational axis of the carrier. An eccentric type mounting is provided for the mandrel axle on the reciprocating arm so that there is an individually operated means to adjust spacing between the carrier rotational axis and the mandrel axis. Vacuum and pressurized air are fed selectively to each mandrel subassembly through a flexible hose having a single loop that is formed by curving virtually the entire length of the hose.